Process Integration Engineer - BEOL

Xanadu; Toronto; Hybrid; CAD 160,000 - 200,000; Full time

Benefits offered by this job

Equity

Benefits

Job summary

Xanadu is hiring in Toronto to lead BEOL process integration for photonic quantum computing hardware. You will define and implement BEOL flows, collaborate with photonics and FEOL teams, and work with foundry partners to optimize fabrication while meeting tight performance specs.

The role requires a PhD and 5+ years in photonics/semiconductor BEOL, with strong communication and teamwork. Remote-friendly within North America; base salary 160,000–200,000 CAD, plus equity and benefits.

Qualifications

• PhD in physics, materials science, photonics or related field.
• ≥ 5 years of experience in photonics and/or semiconductor chip fabrication, focused on BEOL process integration and development.
• Experience in a foundry environment for semiconductor and/or integrated photonics products, including ownership of lots and MES.
• Proven track record defining and implementing BEOL process integration schemes for photonic/semiconductor chips.
• Experience with photonic/semiconductor fabrication processes (RDL, packaging, passivation, etc.).
• Familiarity with metrology and failure analysis techniques (SEM, TEM, AFM, ellipsometry, XRR/XRD, SIMS, Raman).
• Familiarity with photonic components (waveguides, beamsplitters, resonators, MZIs).
• Strong critical thinking skills and teamwork; able to tackle challenging problems with innovative solutions.
• Excellent communication skills; ability to collaborate across teams.
• Ability to travel up to ~25% time.

Responsibilities

• Define, develop and implement BEOL process integration flows for photonic quantum hardware.
• Collaborate with photonics process engineers to refine BEOL processes for chips.
• Coordinate BEOL compatibility with FEOL and Packaging requirements.
• Work with foundry partners to improve integration schemes and balance fabrication needs.
• Define metrology and failure analysis plans; mitigate failure modes; evaluate results.
• Deliver integrated quantum photonics chips and circuits with multiple components.
• Drive innovation in BEOL process development and integration for photonics.
• Stay current with advances in photonics fabrication and integration.

Skills

Critical thinking

Communication

Teamwork

Travel readiness

Education

PhD in physics, materials science or photonics

Tools

MES

SEM

TEM

AFM

XRR/XRD

Raman spectroscopy

Job description

About Xanadu

Xanadu’s mission is to build quantum computers that are useful and available to people everywhere.

At Xanadu, we are learners, innovators, researchers, collaborators and problem solvers. We are creating something that has never been built before. What we are doing is extremely hard, the classic moon shot. Few people in their life will be able to be a part of something like this, where if we are successful, the technologies we develop will solve some of the world’s most challenging problems, and literally change the world. And that is something to be excited about!

Your role and responsibilities

As an industry leader in photonic quantum computing, Xanadu takes hardware very seriously! In this role, you will work within the Fabrication Process Engineering team to deliver Xanadu’s photonic quantum computing hardware. With your deep technical expertise and strong experience in back-end-of-line (BEOL) process integration, you will be responsible for developing process integration schemes used to build critical components of Xanadu’s quantum computing hardware.

• Own the definition, development and implementation of BEOL process integration flows used to build photonic quantum computing hardware that meets strict performance specifications
• Collaborate with internal and external photonics process engineers to refine BEOL fabrication processes for photonic quantum computing chips
• Coordinate with FEOL process integration engineers and Packaging to ensure BEOL processes are compatible with all hardware and systems requirements
• Work with Xanadu’s foundry partners to continuously improve integration schemes and balance competing fabrication requirements
• Define and execute metrology and failure analysis plans to identify and mitigate failure modes and assess results of process integration experiments
• Deliver integrated quantum photonics chips and circuits containing multiple active and passive components
• Innovate in the space of photonic process development and process integration, especially with respect to BEOL processes for integrated photonics
• Stay abreast of new developments in the fields of photonics fabrication process development and integration

Basic qualifications and experience

• PhD in physics, materials science, photonics or related field
• ≥ 5 years of experience in photonics and/or semiconductor chip fabrication, with an emphasis on BEOL process integration and process development
• Experience working in a foundry environment for semiconductor and/or integrated photonics products, including experience owning lots, working with an MES, etc.
• Demonstrated track record of defining, developing and implementing BEOL process integration schemes for photonic and/or semiconductor chips and circuits
• Experience with photonic and/or semiconductor fabrication processes, including some subset of: RDL processing, advanced packaging, passivation, etc.
• Familiarity with standard semiconductor and photonics metrology and failure analysis techniques, including some subset of: SEM, TEM, AFM, defect inspection, ellipsometry, XRR/XRD, SIMS, Raman spectroscopy
• Familiarity with photonic components, such as waveguides, beamsplitters, resonators, MZIs, etc.
• Strong critical thinking skills
• Demonstrated ability to tackle challenging problems and develop innovative solutions
• Excellent communication skills and strong sense of teamwork
• Ability to travel for work up to ~25% time

Preferred qualifications and experience

• ≥ 8 years of experience in photonics chip fabrication
• ≥ 3 years of experience in BEOL photonics process integration
• Experience in developing Cu/Au electroplating processes for low-impedance connections on non-planar surfaces, with special focus on heterogeneously integrated devices on a photonic platform
• Experience with full product development cycle, from R&D through volume ramping
• Experience with process development and process integration for integrated photonics
• Experience coordinating with and managing external partners, including major semiconductor and photonics foundries
• Experience in photonic quantum computing hardware development
• Experience with BEOL tool procurement
• Demonstrated track record of delivering finished integrated photonics products
• Experience working in fabless companies
• Although we would prefer candidates to be located in Toronto, we will consider a remote setup for the right person within North America

This is for a new position. Your base salary will be determined based on your location, experience, and internal benchmarks. The base salary range is 160,000 – 200,000 CAD. You will also be eligible for equity and benefits.

We are an equal opportunity employer and encourage candidates of all backgrounds to apply. We are committed to building an inclusive, safe, and equitable culture and fostering an environment where our employees feel included, valued, and heard. We are committed to meeting the needs of all individuals and support a barrier‑free workplace. Should you require accommodations at any point during the recruitment process please contact Recruiting at [e-mail].

Please be advised that we may use artificial intelligence (AI) tools to assist in the screening and assessment of applicants for this position. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.